#!/usr/bin/env bash

###############################################################################
# Copyright 2019 The Apollo Authors. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
###############################################################################

# Ubuntu 16.04+ is required.
# Usage:
#   buildifier.sh </some/path>

TARGET=$1

# Check tools.
if ! [ -x "$(command -v go)" ]; then
  echo "Installing go..."
  sudo apt-get install -y golang
fi
if [ -z "${GOPATH}" ]; then
  export GOPATH=~/go
fi
BUILDIFIER="${GOPATH}/bin/buildifier"
if ! [ -x "${BUILDIFIER}" ]; then
  echo "Installing buildifier..."
  go get github.com/bazelbuild/buildtools/buildifier
fi

# Format.
if [ -f "${TARGET}" ]; then
  ${BUILDIFIER} "${TARGET}"
else
  ${BUILDIFIER} $(find "${TARGET}" -type f -iname BUILD)
fi
